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I am mostly uses Firefox browser for any developing stuff and I am facing an issue with CKEditor.

CKEditor allows you to direct copy & paste or drag & drop image into CKEditor body area using Firefox browser and it will embed image as base 64 encoded image into the CKEditor body. When you see the actual source code of paste image, it will look like below:

And this will create an issue for me when I am saving record, its give me a database field (column) length error. Because this pasted image will be converted into base 64 encode format and this string length is too much long.

For that, I have added a simple custom JavaScript plug-in ‘blockimagepaste’ into CKEditor, that will restrict user to direct paste or drag & drop image on CKEditor body.